9n-9=6n+12-n

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Solution for 9n-9=6n+12-n equation:


Simplifying
9n + -9 = 6n + 12 + -1n

Reorder the terms:
-9 + 9n = 6n + 12 + -1n

Reorder the terms:
-9 + 9n = 12 + 6n + -1n

Combine like terms: 6n + -1n = 5n
-9 + 9n = 12 + 5n

Solving
-9 + 9n = 12 + 5n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-5n' to each side of the equation.
-9 + 9n + -5n = 12 + 5n + -5n

Combine like terms: 9n + -5n = 4n
-9 + 4n = 12 + 5n + -5n

Combine like terms: 5n + -5n = 0
-9 + 4n = 12 + 0
-9 + 4n = 12

Add '9' to each side of the equation.
-9 + 9 + 4n = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 4n = 12 + 9
4n = 12 + 9

Combine like terms: 12 + 9 = 21
4n = 21

Divide each side by '4'.
n = 5.25

Simplifying
n = 5.25

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